MPEC 2008-F06 : 2008 ER90
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M.P.E.C. 2008-F06 Issued 2008 Mar. 17, 17:18 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2008 ER90
Observations:
K08E90R*2C2008 03 11.57699513 00 39.468-05 12 56.87 21.8 R EF006568
K08E90R 2C2008 03 11.58153213 00 39.678-05 12 40.56 22.0 R EF006568
K08E90R 2C2008 03 13.57001013 02 28.018-03 12 03.01 23.1 R EF006568
K08E90R 2C2008 03 13.57488913 02 28.229-03 11 44.91 23.6 R EF006568
K08E90R 2C2008 03 13.58144613 02 28.508-03 11 20.53 23.0 R EF006568
K08E90R 2C2008 03 14.49011213 03 16.481-02 14 40.02 23.7 R EF006568
K08E90R 2C2008 03 14.49298313 03 16.589-02 14 29.15 22.7 R EF006568
Observer details:
568 Mauna Kea. Observers D. C. Jewitt, F. Bernardi, M. Micheli, A. Draginda.
Measurers D. J. Tholen, F. Bernardi. 10-m Keck I reflector + CCD.
Orbital elements:
2008 ER90 Earth MOID = 0.3066 AU
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 23.13325 (2000.0) P Q
n 0.49392908 Peri. 12.80672 -0.98568574 +0.16728925
a 1.5849892 Node 176.60695 -0.16812658 -0.98458405
e 0.1802137 Incl. 20.70653 +0.01253315 -0.05107404
P 2.00 H 24.2 G 0.15 U 6
Residuals in seconds of arc
080311 568 0.0 0.1- 080313 568 0.0 0.0 080314 568 0.1- 0.0
080311 568 0.0 0.1+ 080313 568 0.0 0.0
080313 568 0.0 0.0 080314 568 0.1+ 0.0
Ephemeris:
2008 ER90 a,e,i = 1.58, 0.18, 21 q = 1.2994
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 03 15 13 03.70 -01 42.4 0.324 1.302 158.8 16.0 23.2
2008 03 20 13 07.51 +03 44.4 0.316 1.300 162.4 13.4 23.0
2008 03 25 13 10.61 +09 19.8 0.313 1.300 162.6 13.3 23.0
2008 03 30 13 13.09 +14 46.2 0.316 1.299 159.2 15.8 23.1
2008 04 04 13 15.07 +19 47.2 0.325 1.300 153.9 19.7 23.3
2008 04 09 13 16.73 +24 10.9 0.338 1.302 148.2 23.9 23.5
2008 04 14 13 18.31 +27 50.9 0.356 1.304 142.6 27.8 23.8
2008 04 19 13 19.97 +30 46.4 0.376 1.307 137.5 31.3 24.0
2008 04 24 13 21.88 +33 00.0 0.399 1.311 132.9 34.2 24.2
2008 04 29 13 24.13 +34 35.6 0.424 1.315 128.8 36.7 24.4
2008 05 04 13 26.82 +35 37.6 0.451 1.320 125.1 38.6 24.6
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-F06
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